From cb5c5e62f738f1ae581307acc873554502236daa Mon Sep 17 00:00:00 2001 From: marcel Date: Sat, 1 Apr 2006 04:51:56 +0000 Subject: [PATCH] Add a MacIO bus attachment. The Z8530 as present in the Mac needs a different register shift and is fed by a different clock than we use for UltraSPARC hardware. To deal with this, the regshft and rclk fields in the class structure are removed and bus frontends now pass the right regshft and rclk to the probe function where they're put in the BAS and passed in to subordinate drivers. --- sys/dev/scc/scc_bfe.h | 4 +- sys/dev/scc/scc_bfe_ebus.c | 5 +- sys/dev/scc/scc_bfe_macio.c | 87 ++++++++++++++++++++++++++++++++++ sys/dev/scc/scc_bfe_sbus.c | 5 +- sys/dev/scc/scc_core.c | 10 ++-- sys/dev/scc/scc_dev_sab82532.c | 4 -- sys/dev/scc/scc_dev_z8530.c | 4 -- 7 files changed, 101 insertions(+), 18 deletions(-) create mode 100644 sys/dev/scc/scc_bfe_macio.c diff --git a/sys/dev/scc/scc_bfe.h b/sys/dev/scc/scc_bfe.h index f1e85a1253ed..cb59422389e6 100644 --- a/sys/dev/scc/scc_bfe.h +++ b/sys/dev/scc/scc_bfe.h @@ -103,8 +103,6 @@ struct scc_class { u_int cl_class; /* SCC bus class ID. */ u_int cl_modes; /* Supported modes (bitset). */ int cl_range; - u_int cl_rclk; - u_int cl_regshft; }; extern struct scc_class scc_sab82532_class; @@ -139,7 +137,7 @@ extern char scc_driver_name[]; int scc_bfe_attach(device_t dev); int scc_bfe_detach(device_t dev); -int scc_bfe_probe(device_t dev); +int scc_bfe_probe(device_t dev, u_int, u_int); struct resource *scc_bus_alloc_resource(device_t, device_t, int, int *, u_long, u_long, u_long, u_int); diff --git a/sys/dev/scc/scc_bfe_ebus.c b/sys/dev/scc/scc_bfe_ebus.c index 4e5d2effade5..5d67143d4247 100644 --- a/sys/dev/scc/scc_bfe_ebus.c +++ b/sys/dev/scc/scc_bfe_ebus.c @@ -42,6 +42,9 @@ __FBSDID("$FreeBSD$"); #include +#define EBUS_REGSHFT 0 +#define EBUS_RCLK 29491200 + static int scc_ebus_probe(device_t dev) { @@ -56,7 +59,7 @@ scc_ebus_probe(device_t dev) if (!strcmp(nm, "se") || !strcmp(cmpt, "sab82532")) { device_set_desc(dev, "Siemens SAB 82532 dual channel SCC"); sc->sc_class = &scc_sab82532_class; - return (scc_bfe_probe(dev)); + return (scc_bfe_probe(dev, EBUS_REGSHFT, EBUS_RCLK)); } return (ENXIO); } diff --git a/sys/dev/scc/scc_bfe_macio.c b/sys/dev/scc/scc_bfe_macio.c new file mode 100644 index 000000000000..e0e73182f018 --- /dev/null +++ b/sys/dev/scc/scc_bfe_macio.c @@ -0,0 +1,87 @@ +/*- + * Copyright (c) 2006 Marcel Moolenaar + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include + +#include + +#define MACIO_REGSHFT 4 +#define MACIO_RCLK 230400 + +static int +scc_macio_probe(device_t dev) +{ + struct scc_softc *sc; + const char *nm; + + sc = device_get_softc(dev); + nm = ofw_bus_get_name(dev); + if (!strcmp(nm, "escc")) { + device_set_desc(dev, "Zilog Z8530 dual channel SCC"); + sc->sc_class = &scc_z8530_class; + return (scc_bfe_probe(dev, MACIO_REGSHFT, MACIO_RCLK)); + } + return (ENXIO); +} + +static device_method_t scc_macio_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, scc_macio_probe), + DEVMETHOD(device_attach, scc_bfe_attach), + DEVMETHOD(device_detach, scc_bfe_detach), + + DEVMETHOD(bus_alloc_resource, scc_bus_alloc_resource), + DEVMETHOD(bus_release_resource, scc_bus_release_resource), + DEVMETHOD(bus_get_resource, scc_bus_get_resource), + DEVMETHOD(bus_read_ivar, scc_bus_read_ivar), + DEVMETHOD(bus_setup_intr, scc_bus_setup_intr), + DEVMETHOD(bus_teardown_intr, scc_bus_teardown_intr), + DEVMETHOD(bus_print_child, bus_generic_print_child), + DEVMETHOD(bus_driver_added, bus_generic_driver_added), + { 0, 0 } +}; + +static driver_t scc_macio_driver = { + scc_driver_name, + scc_macio_methods, + sizeof(struct scc_softc), +}; + +DRIVER_MODULE(scc, macio, scc_macio_driver, scc_devclass, 0, 0); diff --git a/sys/dev/scc/scc_bfe_sbus.c b/sys/dev/scc/scc_bfe_sbus.c index 11e2a49081e4..dc39d7c90e34 100644 --- a/sys/dev/scc/scc_bfe_sbus.c +++ b/sys/dev/scc/scc_bfe_sbus.c @@ -42,6 +42,9 @@ __FBSDID("$FreeBSD$"); #include +#define SBUS_REGSHFT 1 +#define SBUS_RCLK 307200 + static int scc_sbus_probe(device_t dev) { @@ -53,7 +56,7 @@ scc_sbus_probe(device_t dev) if (!strcmp(nm, "zs")) { device_set_desc(dev, "Zilog Z8530 dual channel SCC"); sc->sc_class = &scc_z8530_class; - return (scc_bfe_probe(dev)); + return (scc_bfe_probe(dev, SBUS_REGSHFT, SBUS_RCLK)); } return (ENXIO); } diff --git a/sys/dev/scc/scc_core.c b/sys/dev/scc/scc_core.c index a4079866cfd0..2cad7ea7bc07 100644 --- a/sys/dev/scc/scc_core.c +++ b/sys/dev/scc/scc_core.c @@ -313,7 +313,7 @@ scc_bfe_detach(device_t dev) } int -scc_bfe_probe(device_t dev) +scc_bfe_probe(device_t dev, u_int regshft, u_int rclk) { struct scc_softc *sc; struct scc_class *cl; @@ -362,8 +362,8 @@ scc_bfe_probe(device_t dev) sc->sc_bas.bsh = rman_get_bushandle(sc->sc_rres); sc->sc_bas.bst = rman_get_bustag(sc->sc_rres); sc->sc_bas.range = size; - sc->sc_bas.rclk = sc->sc_class->cl_rclk; - sc->sc_bas.regshft = sc->sc_class->cl_regshft; + sc->sc_bas.rclk = rclk; + sc->sc_bas.regshft = regshft; error = SCC_PROBE(sc); bus_release_resource(dev, sc->sc_rtype, sc->sc_rrid, sc->sc_rres); @@ -442,13 +442,13 @@ scc_bus_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) *result = cl->cl_class; break; case SCC_IVAR_CLOCK: - *result = cl->cl_rclk; + *result = sc->sc_bas.rclk; break; case SCC_IVAR_MODE: *result = m->m_mode; break; case SCC_IVAR_REGSHFT: - *result = cl->cl_regshft; + *result = sc->sc_bas.regshft; break; case SCC_IVAR_HWMTX: *result = (uintptr_t)&sc->sc_hwmtx; diff --git a/sys/dev/scc/scc_dev_sab82532.c b/sys/dev/scc/scc_dev_sab82532.c index e7393eda2bda..f8845c517cf3 100644 --- a/sys/dev/scc/scc_dev_sab82532.c +++ b/sys/dev/scc/scc_dev_sab82532.c @@ -42,8 +42,6 @@ __FBSDID("$FreeBSD$"); #include "scc_if.h" -#define DEFAULT_RCLK 29491200 - static int sab82532_bfe_attach(struct scc_softc *, int); static int sab82532_bfe_iclear(struct scc_softc *, struct scc_chan *); static int sab82532_bfe_ipend(struct scc_softc *); @@ -65,8 +63,6 @@ struct scc_class scc_sab82532_class = { .cl_class = SCC_CLASS_SAB82532, .cl_modes = SCC_MODE_ASYNC | SCC_MODE_BISYNC | SCC_MODE_HDLC, .cl_range = SAB_CHANLEN, - .cl_rclk = DEFAULT_RCLK, - .cl_regshft = 0 }; static int diff --git a/sys/dev/scc/scc_dev_z8530.c b/sys/dev/scc/scc_dev_z8530.c index 1af8880d7c42..6b1704762169 100644 --- a/sys/dev/scc/scc_dev_z8530.c +++ b/sys/dev/scc/scc_dev_z8530.c @@ -42,8 +42,6 @@ __FBSDID("$FreeBSD$"); #include "scc_if.h" -#define DEFAULT_RCLK 307200 - static int z8530_bfe_attach(struct scc_softc *, int); static int z8530_bfe_iclear(struct scc_softc *, struct scc_chan *); static int z8530_bfe_ipend(struct scc_softc *); @@ -65,8 +63,6 @@ struct scc_class scc_z8530_class = { .cl_class = SCC_CLASS_Z8530, .cl_modes = SCC_MODE_ASYNC | SCC_MODE_BISYNC | SCC_MODE_HDLC, .cl_range = (CHAN_B - CHAN_A) << 1, - .cl_rclk = DEFAULT_RCLK, - .cl_regshft = 1, }; /* Multiplexed I/O. */